Power equipment stabilizer

Abstract

The invention discloses a stabilizer for power equipment. The stabilizer comprises the following components in parts by weight: 50-70 parts of poly-alpha-olefin, 40-60 parts of ester base oil, 3-5 parts of an antioxidant, 2-5 parts of a dispersing agent, 2-4 parts of an anti-wear agent, 1-2 parts of a cleaning agent, 1-3 parts of a preservative, 1-3 parts of a foam inhibitor and 3-5 parts of a viscosity index improver, the ester base oil is a composition of dioctanoic acid diester and diisononanoic acid diester, and the weight ratio of the dioctanoic acid diester to the diisononanoic acid diester is 1: (3-5). The power equipment stabilizer prepared by the scheme has excellent performance in a high-temperature oxidation stability test (ASTM D943), a low-temperature starting fluidity test (ASTM D5293) and a pour point test (ASTM D97), and results show that the power equipment stabilizer has certain stability under high-temperature and low-temperature conditions, and meets the use requirements of power equipment. According to the scheme, the ester base oil is a mixture of dioctanoic acid diester and diisononanoic acid diester, so that the performance of the power equipment stabilizer is remarkably improved.

Description

Technical Field

[0001] The invention relates to the field of stabilizers, and more specifically, to a power equipment stabilizer. Background Art

[0002] Power equipment such as engines need to add a certain amount of stabilizer during use to ensure its normal operation. Lubricants are the most common stabilizers. The purpose of lubricants is to reduce friction between mechanical parts of power equipment, reduce wear, reduce heat accumulation, and extend the service life of power equipment. It is usually composed of base oil and various additives.

[0003] However, many mineral oils and some synthetic oils in existing lubricant ingredients are prone to oxidation reactions under high temperature and long-term working conditions, causing the lubricant to deteriorate. During the oxidation process, the viscosity of the lubricant may change, forming acidic substances or sediments, which in turn reduces the protection effect of the engine, increases wear, and even causes engine failure. In cold environments, especially in low temperature conditions in winter, some lubricants may thicken or solidify, causing difficulty in starting the engine and increasing wear during startup. In particular, mineral oil has poor fluidity, and although synthetic oil has improved this, oils of different viscosity grades are still affected by temperature.

[0004] Therefore, how to ensure the stability of lubricants at high and low temperatures, as well as during long-term use, has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] The purpose of the present invention is to provide a power equipment stabilizer to solve the technical problems existing in the above-mentioned background technology.

[0006] The technical solution of the present invention provides a power equipment stabilizer, comprising the following components in parts by weight: 50-70 parts of polyalphaolefin, 40-60 parts of ester base oil, 3-5 parts of antioxidant, 2-5 parts of dispersant, 2-4 parts of antiwear agent, 1-2 parts of detergent, 1-3 parts of preservative, 1-3 parts of foam inhibitor, and 3-5 parts of viscosity index improver;

[0007] The ester base oil is a composition of dioctanoic acid diester and diisononanoic acid diester, and the weight ratio of the two is 1:(3-5).

[0008] In a preferred embodiment, the components are as follows in parts by weight: 60 parts of polyalphaolefin, 45 parts of ester base oil, 4 parts of antioxidant, 3 parts of dispersant, 3 parts of antiwear agent, 1 part of detergent, 2 parts of preservative, 2 parts of foam inhibitor, and 4 parts of viscosity index improver;

[0009] The ester base oil is a composition of dioctanoic acid diester and diisononanoic acid diester, and the weight ratio of the two is 1:4.5.

[0010] In a preferred embodiment, the antioxidant includes at least one of phosphite, 2,6-di-tert-butyl-p-cresol, and 4-methyl-2,6-di-tert-butylphenol.

[0011] In a preferred embodiment, the dispersant includes at least one of a polyurea dispersant, a polyacid anhydride-modified polyisobutylene amine dispersant, and an aliphatic amine dispersant.

[0012] In a preferred embodiment, the anti-wear agent includes at least one of zinc dialkyl dithiophosphate, fatty acid ester, molybdenum disulfide, and trialkyl phosphate.

[0013] In a preferred embodiment, the cleaning agent includes at least one of calcium soap, sodium soap, calcium sulfonate, and sodium sulfonate.

[0014] In a preferred embodiment, the preservative includes at least one of molybdenum disulfide, calcium chloride, and fatty amine.

[0015] In a preferred embodiment, the foam inhibitor includes at least one of silicone oil and stearic acid.

[0016] In a preferred embodiment, the viscosity index improver includes at least one of polyisobutylene, polymethacrylate, and polypropylene.

[0017] The beneficial effects of the technical solution of the present invention are:

[0018] Polyalphaolefins have very good low-temperature fluidity and high-temperature stability. Polyalphaolefins have strong oxidation resistance at high temperatures, which can effectively reduce oil aging and deposition, while showing good fluidity at low temperatures. Ester base oils have excellent low-temperature performance. Ester oils have lower pour points and higher fluidity at low temperatures, and are suitable for engine lubrication in cold climates.

[0019] Antioxidants can prevent oil from oxidizing and deteriorating at high temperatures; antiwear agents can reduce wear on metal surfaces. Dispersants can help keep pollutants in the engine in suspension to prevent deposition; detergents can clean the inside of the engine to prevent the formation of carbon deposits and dirt; anticorrosives can prevent corrosion of metal parts. Viscosity index improvers can increase the viscosity stability of oil products; foam inhibitors can prevent the formation of foam in lubricating oils.

[0020] The power equipment stabilizer prepared by the present scheme has excellent performance in the high temperature oxidation stability test (ASTM D943), the low temperature starting fluidity test (ASTM D5293) and the pour point test (ASTM D97). The results show that it has certain stability under high and low temperature conditions and meets the use requirements of power equipment. It can be seen from the results of Comparative Examples 1 and 2 that in the present scheme, the performance of the power equipment stabilizer is significantly improved by mixing the ester base oils of dioctanoic acid diester and diisononanoic acid diester. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific uses.

[0022] Example 1

[0023] The technical solution of the present invention provides a power equipment stabilizer, comprising the following components in parts by weight: 60 parts of polyalphaolefin, 45 parts of ester base oil, 4 parts of antioxidant, 3 parts of dispersant, 3 parts of antiwear agent, 1 part of detergent, 2 parts of preservative, 2 parts of foam inhibitor, and 4 parts of viscosity index improver; the ester base oil is a composition of dioctanoic acid diester and diisononanoic acid diester, and the weight ratio of the two is 1:4.5.

[0024] The antioxidant includes phosphite; the dispersant includes polyurea dispersant; the anti-wear agent includes zinc dialkyl dithiophosphate; the detergent includes calcium soap; the preservative includes molybdenum disulfide; the foam inhibitor includes silicone oil; and the viscosity index improver includes polyisobutylene.

[0025] Example 2

[0026] The technical solution of the present invention provides a power equipment stabilizer, comprising the following components in parts by weight: 50 parts of polyalphaolefin, 40 parts of ester base oil, 3 parts of antioxidant, 2 parts of dispersant, 2 parts of antiwear agent, 1 part of detergent, 1 part of preservative, 1 part of foam inhibitor, and 3 parts of viscosity index improver; the ester base oil is a composition of dioctanoic acid diester and diisononanoic acid diester, and the weight ratio of the two is 1:3.

[0027] The antioxidant includes a mixture of 2,6-di-tert-butyl-p-cresol and 4-methyl-2,6-di-tert-butylphenol, and the weight ratio of the two is 1:3; the dispersant includes a polyanhydride-modified polyisobutylene amine dispersant; the anti-wear agent includes a mixture of fatty acid ester and molybdenum disulfide, and the weight ratio of the two is 1:2; the detergent includes a mixture of calcium soap and sodium soap, and the weight ratio of the two is 1:1; the preservative includes calcium chloride. The foam inhibitor includes stearic acid; and the viscosity index improver includes polymethacrylate.

[0028] Example 3

[0029] The technical solution of the present invention provides a power equipment stabilizer, comprising the following components in parts by weight: 70 parts of polyalphaolefin, 60 parts of ester base oil, 5 parts of antioxidant, 5 parts of dispersant, 2-4 parts of antiwear agent, 12 parts of detergent, 3 parts of preservative, 3 parts of foam inhibitor, and 5 parts of viscosity index improver; the ester base oil is a composition of dioctanoic acid diester and diisononanoic acid diester, and the weight ratio of the two is 1:5.

[0030] The antioxidant includes 4-methyl-2,6-di-tert-butylphenol; the dispersant includes aliphatic amine dispersants; the anti-wear agent includes molybdenum disulfide. The detergent includes a mixture of calcium sulfonate and sodium sulfonate, and the weight ratio of the two is 1:1; the preservative includes aliphatic amine; the foam inhibitor includes silicone oil. The viscosity index improver includes a mixture of methacrylate and polypropylene, and the weight ratio of the two is 1:2.

[0031] Example 4

[0032] The technical solution of the present invention provides a power equipment stabilizer, comprising the following components in parts by weight: 55 parts of polyalphaolefin, 50 parts of ester base oil, 3 parts of antioxidant, 3 parts of dispersant, 2 parts of antiwear agent, 1 part of detergent, 2 parts of preservative, 2 parts of foam inhibitor, and 4 parts of viscosity index improver; the ester base oil is a composition of dioctanoic acid diester and diisononanoic acid diester, and the weight ratio of the two is 1:4.

[0033] The antioxidant includes a composition of phosphite and 4-methyl-2,6-di-tert-butylphenol, and the weight ratio of the two is 1:2; the dispersant includes a polyacid anhydride modified polyisobutylene amine dispersant; the anti-wear agent includes a composition of zinc dialkyl dithiophosphate and fatty acid ester, and the weight ratio of the two is 1:1; the detergent includes a composition of calcium sulfonate and sodium sulfonate, and the weight ratio of the two is 1:1; the preservative includes molybdenum disulfide; the foam inhibitor includes silicone oil; the viscosity index improver includes a composition of polyisobutylene and polymethacrylate, and the weight ratio of the two is 1:2.

[0034] Comparative Example 1

[0035] All ester base oils were dioctanoic acid diester, and the remaining steps were the same as those in Example 1.

[0036] Comparative Example 2

[0037] The ester base oil is all selected from the composition of diisononanoic acid diester, and the remaining steps are the same as those in Example 1.

[0038] Performance Testing

[0039] The high temperature oxidation stability test (ASTM D943) was used to determine the antioxidant performance of the power equipment stabilizer under high temperature environment; the low temperature starting fluidity test (ASTM D5293) was used to determine the fluidity and starting performance of the power equipment stabilizer under low temperature conditions, especially the performance when the engine was started; the pour point test (ASTM D97) was used to determine the fluidity of the power equipment stabilizer at low temperatures, especially the temperature at which the oil begins to solidify. As shown in Table 1 below:

[0040] Table 1

[0041]

[0042]

[0043] It can be seen from Table 1 above that the power equipment stabilizer prepared in this scheme has excellent performance in the high temperature oxidation stability test (ASTMD943), the low temperature starting fluidity test (ASTM D5293) and the pour point test (ASTM D97). The results show that it has a certain stability under high and low temperature conditions and meets the use requirements of power equipment. It can be seen from the results of Comparative Examples 1 and 2 that in this scheme, the ester base oil is mixed with dioctanoic acid diester and diisononanoic acid diester, which significantly improves the performance of the power equipment stabilizer.

[0044] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A power equipment stabilizer, characterized in that: The invention comprises the following components in parts by weight: 50-70 parts of polyalphaolefin, 40-60 parts of ester base oil, 3-5 parts of antioxidant, 2-5 parts of dispersant, 2-4 parts of antiwear agent, 1-2 parts of detergent, 1-3 parts of preservative, 1-3 parts of foam inhibitor and 3-5 parts of viscosity index improver; The ester base oil is a composition of dioctanoic acid diester and diisononanoic acid diester, and the weight ratio of the two is 1:(3-5).

2. A power equipment stabilizer according to claim 1, characterized in that: The invention comprises the following components in parts by weight: 60 parts of polyalphaolefin, 45 parts of ester base oil, 4 parts of antioxidant, 3 parts of dispersant, 3 parts of antiwear agent, 1 part of detergent, 2 parts of preservative, 2 parts of foam inhibitor and 4 parts of viscosity index improver; The ester base oil is a composition of dioctanoic acid diester and diisononanoic acid diester, and the weight ratio of the two is 1:4.

5.

3. A power equipment stabilizer according to claim 1, characterized in that: The antioxidant includes at least one of phosphite, 2,6-di-tert-butyl-p-cresol, and 4-methyl-2,6-di-tert-butylphenol.

4. A power equipment stabilizer according to claim 1, characterized in that: The dispersant includes at least one of a polyurea dispersant, a polyacid anhydride-modified polyisobutylene amine dispersant, and an aliphatic amine dispersant.

5. A power equipment stabilizer according to claim 1, characterized in that: The anti-wear agent includes at least one of zinc dialkyl dithiophosphate, fatty acid ester, molybdenum disulfide, and trialkyl phosphate.

6. A power equipment stabilizer according to claim 1, characterized in that: The cleaning agent includes at least one of calcium soap, sodium soap, calcium sulfonate, and sodium sulfonate.

7. A power equipment stabilizer according to claim 1, characterized in that: The preservative includes at least one of molybdenum disulfide, calcium chloride and fatty amine.

8. A power equipment stabilizer according to claim 1, characterized in that: The foam inhibitor includes at least one of silicone oil and stearic acid.

9. A power equipment stabilizer according to claim 1, characterized in that: The viscosity index improver includes at least one of polyisobutylene, polymethacrylate and polypropylene.

Images